Eclipse OpenJ9 0.24 Released With A Ton Of Improvements

[phoronix]

Phoronix: Eclipse OpenJ9 0.24 Released With A Ton Of Improvements

In addition to Oracle's GraalVM 21.0 being released this week, the Eclipse Foundation has released OpenJ9 v0.24 as the newest feature release for their high performance JVM...

http://www.phoronix.com/scan.php?page=news_item&px=Eclipse-OpenJ9-0.24

[bug77]

contains nearly 400 changes including countless bug fixes

That doesn't sound very reassuring. How many bug were there?

[Linuxhippy]

J9 is always quite bold with claims by presenting certain microbenchmark results which are heavily optimized towards one direction.
However, when running real workloads with J9, it is quite obvious how well balanced hotspot is compared to J9.

[zoomblab]

First, nobody uses OpenJ9. Production systems traditionaly use the Sun/Oracle JDK & JVM. IBM tried hard in the past to push their tech, through their vehicle the eclipse foundation, but they have failed.

Second, brands with attached prefixes and suffixes suck. Especially numbers. This is not a conclusion based on data, but I am pretty sure it is true.

[RahulSundaram]

That doesn't sound very reassuring. How many bug were there?

The official release is linked and has the bugs listed. If you are truly interested, you can count that

[RahulSundaram]

First, nobody uses OpenJ9. Production systems traditionaly use the Sun/Oracle JDK & JVM.

The first statement is empirically not true. OpenJ9 is embedded in several open source projects like Apache Openwhisk and products including WebSphere which has a substantial marketshare in the Java application server space. OpenJDK is more widely available however. As long as it spec compatible, you can use it is a drop-in replacement where it makes sense.

[caligula]

The first statement is empirically not true. OpenJ9 is embedded in several open source projects like Apache Openwhisk and products including WebSphere which has a substantial marketshare in the Java application server space. OpenJDK is more widely available however. As long as it spec compatible, you can use it is a drop-in replacement where it makes sense.

It's a lot slower though. No idea why anyone would use it. WebSphere, Apache stuff, and Eclipse sucks, too.

[RahulSundaram]

It's a lot slower though. No idea why anyone would use it

It can be much faster than hotspot for startup and typically uses less memory. This won't matter as much if your use case is long lived applications but something like containers it makes sense to benchmark it and use it if the data shows the benefit.

[bug77]

The official release is linked and has the bugs listed. If you are truly interested, you can count that

The question was "how many bugs were in the previous version", not "how many bugs were fixed"

[RahulSundaram]

The question was "how many bugs were in the previous version", not "how many bugs were fixed"

How many bugs are there in any software is always going to be unknown. You can only count fixes.